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Faucher, Giulia; Haunost, Mathias; Paul, Allanah Joy; Tietz, Anne Ulrike Christiane; Riebesell, Ulf (2026): Seawater carbonate chemistry and growth response of Emiliania huxleyi to ocean alkalinity enhancement [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993415 (DOI registration in progress)

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Published: 2026-04-02

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Abstract:
In this context, we studied the sensitivity of Emiliania huxleyi, the most widespread coccolithophore species, to ocean alkalinity enhancement in a culture experiment. We monitored the species' growth and calcification response to progressively increasing levels of total alkalinity (TA).
This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were extracted from tables in the related paper (see Related to) by the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2026-04-02.
Keyword(s):
Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Chromista; Emiliania huxleyi; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Not applicable; Pelagos; Phytoplankton; Primary production/Photosynthesis; Species interaction
Related to:
Faucher, Giulia; Haunost, Mathias; Paul, Allanah Joy; Tietz, Christiane; Riebesell, Ulf (2025): Growth response of Emiliania huxleyi to ocean alkalinity enhancement. Biogeosciences, 22(2), 405-415, https://doi.org/10.5194/bg-22-405-2025
References:
Nisumaa, Anne-Marin; Pesant, Stephane; Bellerby, Richard G J; Delille, Bruno; Middelburg, Jack J; Orr, James C; Riebesell, Ulf; Tyrrell, Toby; Wolf-Gladrow, Dieter A; Gattuso, Jean-Pierre (2010): EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification. Earth System Science Data, 2(2), 167-175, https://doi.org/10.5194/essd-2-167-2010
Yang, Yan; Brockmann, Patrick; Galdino, Carolina; Schindler, Uwe; Gazeau, Frédéric (2024): An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal. Earth System Science Data, 16(8), 3771-3780, https://doi.org/10.5194/essd-16-3771-2024
Yang, Yan; Hansson, L; Gattuso, Jean-Pierre (2016): Data compilation on the biological response to ocean acidification: an update. Earth System Science Data, 8(1), 79-87, https://doi.org/10.5194/essd-8-79-2016
Related code / software:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2024): seacarb: seawater carbonate chemistry with R. R package version 3.3.3. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeFaucher, Giulia
2Species, unique identificationSpecies UIDFaucher, Giulia
3Species, unique identification (URI)Species UID (URI)Faucher, Giulia
4Species, unique identification (Semantic URI)Species UID (Semantic URI)Faucher, Giulia
5Alkalinity, totalATµmol/kgFaucher, Giuliamean
6Carbon, inorganic, dissolvedDICµmol/kgFaucher, Giuliamean
7pH, total scalepHTFaucher, GiuliaCalculated using CO2SYSmean
8Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmFaucher, GiuliaCalculated using CO2SYSmean
9Carbon dioxideCO2µmol/kgFaucher, GiuliaCalculated using CO2SYSmean
10Bicarbonate ion[HCO3]-µmol/kgFaucher, GiuliaCalculated using CO2SYS
11Carbonate ion[CO3]2-µmol/kgFaucher, GiuliaCalculated using CO2SYS
12Aragonite saturation stateOmega ArgFaucher, GiuliaCalculated using CO2SYS
13Calcite saturation stateOmega CalFaucher, GiuliaCalculated using CO2SYS
14Growth rateµ1/dayFaucher, Giulia
15Particulate inorganic carbon/particulate organic carbon ratioPIC/POCFaucher, Giulia
16Carbon, total, particulate, production per cellTPC prod/cellpg/#/dayFaucher, Giulia
17Carbon, organic, particulate, production per cellPOC prod/cellpg/#/dayFaucher, Giulia
18Carbon, inorganic, particulate, production per cellPIC prod/cellpg/#/dayFaucher, Giulia
19Temperature, waterTemp°CFaucher, Giulia
20SalinitySalFaucher, Giulia
21Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22pH, total scalepHTYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
432 data points

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